公开(公告)号：US20220331857A1

公开(公告)日：2022-10-20

申请号：US17640808

申请日：2020-09-03

Applicant: BASF SE ,  Formetrix, Inc.

Inventor： Rudolf SEILER ,  Cecile MUELLER-WEITZEL ,  Matthias Johannes WAGNER ,  Rene ARBTER ,  Thorsten MArtin STAUDT ,  Marie-Claire HERMANT ,  Harald LEMKE ,  Jonathan TRENKLE

IPC: B22F1/052 ,  B22F10/28 ,  B22F9/08

Abstract: The present invention relates to an iron-based alloy powder containing non-spherical particles wherein the alloy comprises the elements Fe (iron), Cr (chrome) and Mo (molybdenum), and at least 40% of the total amount of particles have a non-spherical shape. In said iron-based alloy powder, Cr is present at 10.0 wt. % to 18.3 wt. %, Mo is present at 0.5 wt. % to 2.5 wt. %, C is present at 0 to 0.30 wt. %, Ni is present at 0 to 4.0 wt. %, Cu is present at 0 to 4.0 wt. %, Nb is present at 0 to 0.7 wt. %, Si is present at 0 to 0.7 wt. % and N is present at 0 to 0.20 wt. %, the balance up to 100 wt. % is Fe.

公开(公告)号：US20210154652A1

公开(公告)日：2021-05-27

申请号：US17056753

申请日：2019-05-17

Applicant: BASF SE

Inventor： Marco Oskar KENNEMA ,  Christian WALSDORFF ,  Fred BORNINKHOF ,  Matthias Johannes WAGNER ,  Bernd SCHUBE ,  Jochen ROERIG ,  Gerald BASTIAN ,  Sabine HUBER ,  Marcelo Daniel KAUFMAN RECHULSKI

IPC: B01J37/00 ,  B33Y70/00 ,  B33Y30/00 ,  B33Y80/00 ,  B33Y10/00 ,  B29C48/11 ,  B29C48/30 ,  B01J35/04

Abstract: The invention relates to a die (10) for the extrusion of catalyst molding, catalyst support molding, or adsorbent molding (60) in flow direction (32) of an extrudable composition from an entry side (12) to a discharge side (14) of the die comprising a shell (56) and comprising one or more channel-formers (18) which are displacers of the extrudable composition and which extend in flow direction of the extrudable composition, wherein the channel-formers (18) have been metal-printed.
It is preferable that this is free from cavities for receiving extrudable composition which extend at right angles to the flow direction (32) of the extrudable composition, and that this is free from connections running at right angles from channel-formers (18) to the interior side wall (22) of the die (10).
The invention further relates to a process for the production, by means of 3D metal printing, of a metal-printed die (10) for the extrusion of catalyst moldings/support moldings (60).